Quartz Flask
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Quartz Flask

Quartz Flask

Material: 99.99% fused quartz glass (SiO₂)
Size: customize
MOQ: 1 pcs

Description

Product Advantages

 

  • Higher Durability – Longer lifespan than borosilicate glass due to superior thermal and chemical resistance.
  • Versatile Compatibility – Works with strong acids (except HF), bases, and organic solvents.
  • Reusable & Sterilizable – Can be autoclaved, flame-sterilized, or cleaned with aggressive reagents.
  • Optimal for UV Work – Unlike plastic or borosilicate, quartz allows UV light transmission.

 

Functions

 

  • Heating & Boiling: Safe for direct flame, hotplate, or furnace use.
  • Chemical Reactions: Ideal for corrosive or high-purity processes.
  • Distillation & Evaporation: Used in labs for solvent recovery and sample concentration.
  • Vacuum Applications: Compatible with vacuum systems due to high structural integrity.

 

Applications

 

Laboratory Research:

Chemical synthesis, catalysis, and material science experiments.

01

Semiconductor Industry:

High-purity processes like wafer cleaning and CVD (Chemical Vapor Deposition).

02

Pharmaceuticals:

Drug development and solvent handling.

03

Environmental Testing:

Sample digestion and trace metal analysis.

04

Educational Labs:

Used in chemistry and engineering demonstrations.

05

 

Typical size

 

Flat Bottom Flask

Volume/ml

Outer diameter for neck/mm

Outer diameter for body/mm

Height/mm

Mini Wall thickness/mm

50

22

51

100

0.8

100

22

64

110

0.8

250

34

85

140

0.9

500

34

105

170

0.9

1000

42

131

200

1.3

2000

50

166

250

1.5

3000

50

195

295

1.6

4000

50

207

300

1.8

5000

50

223

330

1.8

6000

65

236

340

1.8

10000

65

179

400

2.0

20000

76

345

490

2.0

In addition to, we also can do double neck flask, triple-neck flask, quadruple-neck flask, conical flask, pear-shape flask, round bottom flask, etc.

 

Properties

 

Physical Properties

Values

Purity

>99.99%

Density

2.2g/cm3

Transparency

>90%

Mohs Hardness

5.5--6.5

Deformation Point

1280℃

Softening Point

1780℃

Annealing Point

1250℃

Specific Heat (20 - 350°C)

670J/kg.℃

Thermal Conductivity (20°C)

1.4W/m.℃

Heat Conductivity (w/m.k,1000 ℃ )

1.0-1.2

Refractive Index

1.4585

Coefficient of Thermal Expansion

5.5*10 -7cm/cm.℃

Hot - working Temperature

1750--2050℃

Short - term Service Temperature

1300℃

Long - term Service Temperature

1100℃

 

Chemical Properties

Values

Acid resistant

Strong Acid(except HF),Strong alkali, organic solution

High temperatures Corrosion resistant

Excellent

Metal Impurity Content

<5 ppm

 

Electrical Properties

Values

Resistivity

7*107Ω.cm

Insulation Strength

250~400Kv/cm

Dielectric Constant

3.7~3.9

Dielectric Absorption Coefficient

<4*10-4

Dielectric Loss Coefficient

<1*10-4

 

Mechanical Properties

Values

Compressive Strength

1100MPa

Bending Strength

67MPa

Tensile Strength

48MPa

Poisson's Ratio

0.14~0.17

Young's Modulus

72000MPa

Shear Modulus

31000MPa

 

FAQ

Q1: Can quartz flasks be used with hydrofluoric acid (HF)?

A: No, quartz reacts violently with HF. Use PTFE or HF-resistant alternatives.

Q2: What's the maximum temperature a quartz flask can handle?

A: Short-term: Up to 1200°C (for brief heating). Long-term: Recommended max is 1000°C.

Q3: How do I clean a quartz flask?

A: Use dilute acids (HCl/HNO₃), aqua regia, or organic solvents. Avoid abrasive scrubbers.

Q4: Is quartz glass unbreakable?

A: While highly resistant to thermal shock, quartz can still crack if dropped or mechanically stressed.

Q5: Can I use a quartz flask in a microwave or induction heater?

A: Yes, quartz is microwave-safe but not inherently induction-compatible (unless modified with a susceptor).

Q6: What's the difference between quartz and borosilicate flasks?

A: Quartz has higher temperature resistance, better UV transparency, and greater chemical durability, while borosilicate is cheaper but less robust.

 

Summary

 

Quartz flasks are essential for high-temperature, high-purity, and UV-sensitive applications, offering unmatched durability and chemical resistance.

Customization Options Available:

  • Round-bottom, flat-bottom, or multi-neck designs.
  • Custom sizes (50mL to 5000mL).
  • Optional ground glass joints (ST, NS, or ISO standards).

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